Adapt sources to configurable config.h name
diff --git a/library/aes.c b/library/aes.c
index fb211fe..f0a25bc 100644
--- a/library/aes.c
+++ b/library/aes.c
@@ -29,7 +29,11 @@
  *  http://csrc.nist.gov/publications/fips/fips197/fips-197.pdf
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_AES_C)
 
diff --git a/library/aesni.c b/library/aesni.c
index e396d43..9d21c85 100644
--- a/library/aesni.c
+++ b/library/aesni.c
@@ -28,7 +28,11 @@
  * [CLMUL-WP] http://software.intel.com/en-us/articles/intel-carry-less-multiplication-instruction-and-its-usage-for-computing-the-gcm-mode/
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_AESNI_C)
 
diff --git a/library/arc4.c b/library/arc4.c
index 536ea8c..dbf0c7e 100644
--- a/library/arc4.c
+++ b/library/arc4.c
@@ -28,7 +28,11 @@
  *  http://groups.google.com/group/sci.crypt/msg/10a300c9d21afca0
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_ARC4_C)
 
diff --git a/library/asn1parse.c b/library/asn1parse.c
index c9ce75a..8b8e2df 100644
--- a/library/asn1parse.c
+++ b/library/asn1parse.c
@@ -23,7 +23,11 @@
  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_ASN1_PARSE_C)
 
diff --git a/library/asn1write.c b/library/asn1write.c
index 626e0ff..314c9f9 100644
--- a/library/asn1write.c
+++ b/library/asn1write.c
@@ -23,7 +23,11 @@
  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_ASN1_WRITE_C)
 
diff --git a/library/base64.c b/library/base64.c
index ee9c05c..103d814 100644
--- a/library/base64.c
+++ b/library/base64.c
@@ -23,7 +23,11 @@
  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_BASE64_C)
 
diff --git a/library/bignum.c b/library/bignum.c
index 5fbb7d3..ac7f25c 100644
--- a/library/bignum.c
+++ b/library/bignum.c
@@ -30,7 +30,11 @@
  *  http://math.libtomcrypt.com/files/tommath.pdf
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_BIGNUM_C)
 
diff --git a/library/blowfish.c b/library/blowfish.c
index 910d610..733c9fa 100644
--- a/library/blowfish.c
+++ b/library/blowfish.c
@@ -29,7 +29,11 @@
  *
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_BLOWFISH_C)
 
diff --git a/library/camellia.c b/library/camellia.c
index f007a46..4bf0b29 100644
--- a/library/camellia.c
+++ b/library/camellia.c
@@ -29,7 +29,11 @@
  *  http://info.isl.ntt.co.jp/crypt/eng/camellia/dl/01espec.pdf
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_CAMELLIA_C)
 
diff --git a/library/certs.c b/library/certs.c
index 7409efa..982226d 100644
--- a/library/certs.c
+++ b/library/certs.c
@@ -23,7 +23,11 @@
  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_CERTS_C)
 
diff --git a/library/cipher.c b/library/cipher.c
index a103c26..7534b2f 100644
--- a/library/cipher.c
+++ b/library/cipher.c
@@ -27,7 +27,11 @@
  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_CIPHER_C)
 
diff --git a/library/cipher_wrap.c b/library/cipher_wrap.c
index 23065c4..2a79eef 100644
--- a/library/cipher_wrap.c
+++ b/library/cipher_wrap.c
@@ -27,7 +27,11 @@
  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_CIPHER_C)
 
diff --git a/library/ctr_drbg.c b/library/ctr_drbg.c
index 4027809..89b4c4c 100644
--- a/library/ctr_drbg.c
+++ b/library/ctr_drbg.c
@@ -28,7 +28,11 @@
  *  http://csrc.nist.gov/publications/nistpubs/800-90/SP800-90revised_March2007.pdf
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_CTR_DRBG_C)
 
diff --git a/library/debug.c b/library/debug.c
index 60e39ed..b768e64 100644
--- a/library/debug.c
+++ b/library/debug.c
@@ -23,7 +23,11 @@
  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_DEBUG_C)
 
diff --git a/library/des.c b/library/des.c
index 7da3269..b8bb271 100644
--- a/library/des.c
+++ b/library/des.c
@@ -29,7 +29,11 @@
  *  http://csrc.nist.gov/publications/fips/fips46-3/fips46-3.pdf
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_DES_C)
 
diff --git a/library/dhm.c b/library/dhm.c
index 635e63e..5a38c14 100644
--- a/library/dhm.c
+++ b/library/dhm.c
@@ -28,7 +28,11 @@
  *  http://www.cacr.math.uwaterloo.ca/hac/ (chapter 12)
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_DHM_C)
 
diff --git a/library/ecdh.c b/library/ecdh.c
index e35602d..fa32593 100644
--- a/library/ecdh.c
+++ b/library/ecdh.c
@@ -30,7 +30,11 @@
  * RFC 4492
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_ECDH_C)
 
diff --git a/library/ecdsa.c b/library/ecdsa.c
index 6e45f2f..e467e37 100644
--- a/library/ecdsa.c
+++ b/library/ecdsa.c
@@ -29,7 +29,11 @@
  * SEC1 http://www.secg.org/index.php?action=secg,docs_secg
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_ECDSA_C)
 
diff --git a/library/ecp.c b/library/ecp.c
index 4823804..7e965d3 100644
--- a/library/ecp.c
+++ b/library/ecp.c
@@ -44,7 +44,11 @@
  *     <http://eprint.iacr.org/2004/342.pdf>
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_ECP_C)
 
diff --git a/library/ecp_curves.c b/library/ecp_curves.c
index afb1dd7..7fc07a0 100644
--- a/library/ecp_curves.c
+++ b/library/ecp_curves.c
@@ -23,7 +23,11 @@
  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_ECP_C)
 
diff --git a/library/entropy.c b/library/entropy.c
index d62fecf..238719b 100644
--- a/library/entropy.c
+++ b/library/entropy.c
@@ -23,7 +23,11 @@
  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_ENTROPY_C)
 
diff --git a/library/entropy_poll.c b/library/entropy_poll.c
index badcfac..5c1dcc7 100644
--- a/library/entropy_poll.c
+++ b/library/entropy_poll.c
@@ -23,7 +23,11 @@
  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_ENTROPY_C)
 
diff --git a/library/error.c b/library/error.c
index b2e8346..ed0f39e 100644
--- a/library/error.c
+++ b/library/error.c
@@ -23,7 +23,11 @@
  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_ERROR_C)
 
diff --git a/library/gcm.c b/library/gcm.c
index 1c6cf9f..d5918a5 100644
--- a/library/gcm.c
+++ b/library/gcm.c
@@ -33,7 +33,11 @@
  * [MGV] 4.1, pp. 12-13, to enhance speed without using too much memory.
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_GCM_C)
 
diff --git a/library/havege.c b/library/havege.c
index 4d6f418..42aceda 100644
--- a/library/havege.c
+++ b/library/havege.c
@@ -30,7 +30,11 @@
  *  Contact: seznec(at)irisa_dot_fr - orocheco(at)irisa_dot_fr
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_HAVEGE_C)
 
diff --git a/library/hmac_drbg.c b/library/hmac_drbg.c
index baef526..619b446 100644
--- a/library/hmac_drbg.c
+++ b/library/hmac_drbg.c
@@ -29,7 +29,11 @@
  *  References below are based on rev. 1 (January 2012).
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_HMAC_DRBG_C)
 
diff --git a/library/md.c b/library/md.c
index 5ab0fad..a05bf34 100644
--- a/library/md.c
+++ b/library/md.c
@@ -27,7 +27,11 @@
  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_MD_C)
 
diff --git a/library/md2.c b/library/md2.c
index f29877f..1e1691d 100644
--- a/library/md2.c
+++ b/library/md2.c
@@ -29,7 +29,11 @@
  *  http://www.ietf.org/rfc/rfc1319.txt
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_MD2_C)
 
diff --git a/library/md4.c b/library/md4.c
index 8ac6c01..aa5f539 100644
--- a/library/md4.c
+++ b/library/md4.c
@@ -29,7 +29,11 @@
  *  http://www.ietf.org/rfc/rfc1320.txt
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_MD4_C)
 
diff --git a/library/md5.c b/library/md5.c
index c596e43..6ceab8a 100644
--- a/library/md5.c
+++ b/library/md5.c
@@ -28,7 +28,11 @@
  *  http://www.ietf.org/rfc/rfc1321.txt
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_MD5_C)
 
diff --git a/library/md_wrap.c b/library/md_wrap.c
index a6c1bac..0b091e3 100644
--- a/library/md_wrap.c
+++ b/library/md_wrap.c
@@ -27,7 +27,11 @@
  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_MD_C)
 
diff --git a/library/memory_buffer_alloc.c b/library/memory_buffer_alloc.c
index 33ab5ac..5176176 100644
--- a/library/memory_buffer_alloc.c
+++ b/library/memory_buffer_alloc.c
@@ -23,7 +23,11 @@
  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_MEMORY_BUFFER_ALLOC_C)
 
diff --git a/library/net.c b/library/net.c
index ff48986..0bc2f68 100644
--- a/library/net.c
+++ b/library/net.c
@@ -23,7 +23,11 @@
  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_NET_C)
 
diff --git a/library/oid.c b/library/oid.c
index 2a61193..2b52935 100644
--- a/library/oid.c
+++ b/library/oid.c
@@ -25,7 +25,11 @@
  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_OID_C)
 
diff --git a/library/padlock.c b/library/padlock.c
index 6e94532..52b04f0 100644
--- a/library/padlock.c
+++ b/library/padlock.c
@@ -29,7 +29,11 @@
  *  programming_guide.pdf
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_PADLOCK_C)
 
diff --git a/library/pbkdf2.c b/library/pbkdf2.c
index 09e56df..6572274 100644
--- a/library/pbkdf2.c
+++ b/library/pbkdf2.c
@@ -34,7 +34,11 @@
  * http://tools.ietf.org/html/rfc6070 (Test vectors)
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_PBKDF2_C)
 
diff --git a/library/pem.c b/library/pem.c
index 1cc23ba..2f639d0 100644
--- a/library/pem.c
+++ b/library/pem.c
@@ -23,7 +23,11 @@
  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_PEM_PARSE_C) || defined(POLARSSL_PEM_WRITE_C)
 #include "polarssl/pem.h"
diff --git a/library/pk.c b/library/pk.c
index 25c9d85..ce17107 100644
--- a/library/pk.c
+++ b/library/pk.c
@@ -23,7 +23,11 @@
  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_PK_C)
 
diff --git a/library/pk_wrap.c b/library/pk_wrap.c
index 2a4da03..513d96d 100644
--- a/library/pk_wrap.c
+++ b/library/pk_wrap.c
@@ -23,7 +23,11 @@
  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_PK_C)
 
diff --git a/library/pkcs12.c b/library/pkcs12.c
index 16821b0..637c057 100644
--- a/library/pkcs12.c
+++ b/library/pkcs12.c
@@ -29,7 +29,11 @@
  *  ftp://ftp.rsasecurity.com/pub/pkcs/pkcs-12/pkcs-12v1-1.asn
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_PKCS12_C)
 
diff --git a/library/pkcs5.c b/library/pkcs5.c
index 2845f68..db4e8cc 100644
--- a/library/pkcs5.c
+++ b/library/pkcs5.c
@@ -33,7 +33,11 @@
  * http://tools.ietf.org/html/rfc6070 (Test vectors)
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_PKCS5_C)
 
diff --git a/library/pkparse.c b/library/pkparse.c
index d0ae5d5..ae8bddf 100644
--- a/library/pkparse.c
+++ b/library/pkparse.c
@@ -23,7 +23,11 @@
  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_PK_PARSE_C)
 
diff --git a/library/pkwrite.c b/library/pkwrite.c
index 4cbba10..aa04a5a 100644
--- a/library/pkwrite.c
+++ b/library/pkwrite.c
@@ -23,7 +23,11 @@
  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_PK_WRITE_C)
 
diff --git a/library/platform.c b/library/platform.c
index 8ea485d..d57cbc8 100644
--- a/library/platform.c
+++ b/library/platform.c
@@ -23,7 +23,11 @@
  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_PLATFORM_C)
 
diff --git a/library/ripemd160.c b/library/ripemd160.c
index 10e60df..f0e04a8 100644
--- a/library/ripemd160.c
+++ b/library/ripemd160.c
@@ -29,7 +29,11 @@
  *  http://ehash.iaik.tugraz.at/wiki/RIPEMD-160
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_RIPEMD160_C)
 
diff --git a/library/rsa.c b/library/rsa.c
index 1786149..9cfbe2a 100644
--- a/library/rsa.c
+++ b/library/rsa.c
@@ -29,7 +29,11 @@
  *  http://www.cacr.math.uwaterloo.ca/hac/about/chap8.pdf
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_RSA_C)
 
diff --git a/library/sha1.c b/library/sha1.c
index f02d6e6..b89db32 100644
--- a/library/sha1.c
+++ b/library/sha1.c
@@ -28,7 +28,11 @@
  *  http://www.itl.nist.gov/fipspubs/fip180-1.htm
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_SHA1_C)
 
diff --git a/library/sha256.c b/library/sha256.c
index 638188f..e3d3ea8 100644
--- a/library/sha256.c
+++ b/library/sha256.c
@@ -28,7 +28,11 @@
  *  http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_SHA256_C)
 
diff --git a/library/sha512.c b/library/sha512.c
index 1bef2e9..1d4b977 100644
--- a/library/sha512.c
+++ b/library/sha512.c
@@ -28,7 +28,11 @@
  *  http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_SHA512_C)
 
diff --git a/library/ssl_cache.c b/library/ssl_cache.c
index 4c7d3db..69f7114 100644
--- a/library/ssl_cache.c
+++ b/library/ssl_cache.c
@@ -27,7 +27,11 @@
  * to store and retrieve the session information.
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_SSL_CACHE_C)
 
diff --git a/library/ssl_ciphersuites.c b/library/ssl_ciphersuites.c
index 25d192b..8018fe7 100644
--- a/library/ssl_ciphersuites.c
+++ b/library/ssl_ciphersuites.c
@@ -25,7 +25,11 @@
  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_SSL_TLS_C)
 
diff --git a/library/ssl_cli.c b/library/ssl_cli.c
index cd0d8c2..72299ee 100644
--- a/library/ssl_cli.c
+++ b/library/ssl_cli.c
@@ -23,7 +23,11 @@
  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_SSL_CLI_C)
 
diff --git a/library/ssl_srv.c b/library/ssl_srv.c
index acf2ef2..21c4e2b 100644
--- a/library/ssl_srv.c
+++ b/library/ssl_srv.c
@@ -23,7 +23,11 @@
  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_SSL_SRV_C)
 
diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index e9b1024..15245e4 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -31,7 +31,11 @@
  *  http://www.ietf.org/rfc/rfc4346.txt
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_SSL_TLS_C)
 
diff --git a/library/threading.c b/library/threading.c
index 744fe27..5b25e01 100644
--- a/library/threading.c
+++ b/library/threading.c
@@ -23,7 +23,11 @@
  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_THREADING_C)
 
diff --git a/library/timing.c b/library/timing.c
index d8b5b46..f22591d 100644
--- a/library/timing.c
+++ b/library/timing.c
@@ -23,7 +23,11 @@
  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_SELF_TEST) && defined(POLARSSL_PLATFORM_C)
 #include "polarssl/platform.h"
diff --git a/library/version.c b/library/version.c
index c1080b7..120d62d 100644
--- a/library/version.c
+++ b/library/version.c
@@ -23,7 +23,11 @@
  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_VERSION_C)
 
diff --git a/library/version_features.c b/library/version_features.c
index 2382798..d7d2d8f 100644
--- a/library/version_features.c
+++ b/library/version_features.c
@@ -23,7 +23,11 @@
  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_VERSION_C)
 
diff --git a/library/x509.c b/library/x509.c
index 60e1cac..1b06e21 100644
--- a/library/x509.c
+++ b/library/x509.c
@@ -34,7 +34,11 @@
  *  http://www.itu.int/ITU-T/studygroups/com17/languages/X.690-0207.pdf
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_X509_USE_C)
 
diff --git a/library/x509_create.c b/library/x509_create.c
index 8e12c14..8f7a789 100644
--- a/library/x509_create.c
+++ b/library/x509_create.c
@@ -23,7 +23,11 @@
  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_X509_CREATE_C)
 
diff --git a/library/x509_crl.c b/library/x509_crl.c
index e3ebbff..6e46e1f 100644
--- a/library/x509_crl.c
+++ b/library/x509_crl.c
@@ -34,7 +34,11 @@
  *  http://www.itu.int/ITU-T/studygroups/com17/languages/X.690-0207.pdf
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_X509_CRL_PARSE_C)
 
diff --git a/library/x509_crt.c b/library/x509_crt.c
index 2c32122..d072366 100644
--- a/library/x509_crt.c
+++ b/library/x509_crt.c
@@ -34,7 +34,11 @@
  *  http://www.itu.int/ITU-T/studygroups/com17/languages/X.690-0207.pdf
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_X509_CRT_PARSE_C)
 
diff --git a/library/x509_csr.c b/library/x509_csr.c
index 4fb9ac2..7213fd2 100644
--- a/library/x509_csr.c
+++ b/library/x509_csr.c
@@ -34,7 +34,11 @@
  *  http://www.itu.int/ITU-T/studygroups/com17/languages/X.690-0207.pdf
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_X509_CSR_PARSE_C)
 
diff --git a/library/x509write_crt.c b/library/x509write_crt.c
index 15a1194..302b877 100644
--- a/library/x509write_crt.c
+++ b/library/x509write_crt.c
@@ -29,7 +29,11 @@
  * - attributes: PKCS#9 v2.0 aka RFC 2985
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_X509_CRT_WRITE_C)
 
diff --git a/library/x509write_csr.c b/library/x509write_csr.c
index 3a49aee..6e7bed4 100644
--- a/library/x509write_csr.c
+++ b/library/x509write_csr.c
@@ -28,7 +28,11 @@
  * - attributes: PKCS#9 v2.0 aka RFC 2985
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_X509_CSR_WRITE_C)
 
diff --git a/library/xtea.c b/library/xtea.c
index 1bb6f29..58f970c 100644
--- a/library/xtea.c
+++ b/library/xtea.c
@@ -23,7 +23,11 @@
  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
+#if !defined(POLARSSL_CONFIG_FILE)
 #include "polarssl/config.h"
+#else
+#include POLARSSL_CONFIG_FILE
+#endif
 
 #if defined(POLARSSL_XTEA_C)